The conservative commentariat has imploded in dismay at Sarah Palin’s endorsement of Donald Trump in Iowa on Tuesday. Fans of Sen. Ted Cruz (R-TX) , Trump’s main rival in Iowa and beyond, were understandably dismayed. But the reaction went far beyond that. Some said Palin betrayed her conservative principles by choosing a candidate whose conservatism is shallow at best. And some rehashed the personal attacks that have been a staple of the left. In fact, Sarah Palin’s endorsement of Trump makes sense, and fits both her politics and her personality.